os-win32.h (6224B)
1/* 2 * win32 specific declarations 3 * 4 * Copyright (c) 2003-2008 Fabrice Bellard 5 * Copyright (c) 2010 Jes Sorensen <Jes.Sorensen@redhat.com> 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 26#ifndef QEMU_OS_WIN32_H 27#define QEMU_OS_WIN32_H 28 29#include <winsock2.h> 30#include <windows.h> 31#include <ws2tcpip.h> 32 33#ifdef __cplusplus 34extern "C" { 35#endif 36 37#if defined(_WIN64) 38/* On w64, setjmp is implemented by _setjmp which needs a second parameter. 39 * If this parameter is NULL, longjump does no stack unwinding. 40 * That is what we need for QEMU. Passing the value of register rsp (default) 41 * lets longjmp try a stack unwinding which will crash with generated code. */ 42# undef setjmp 43# define setjmp(env) _setjmp(env, NULL) 44#endif 45/* QEMU uses sigsetjmp()/siglongjmp() as the portable way to specify 46 * "longjmp and don't touch the signal masks". Since we know that the 47 * savemask parameter will always be zero we can safely define these 48 * in terms of setjmp/longjmp on Win32. 49 */ 50#define sigjmp_buf jmp_buf 51#define sigsetjmp(env, savemask) setjmp(env) 52#define siglongjmp(env, val) longjmp(env, val) 53 54/* Missing POSIX functions. Don't use MinGW-w64 macros. */ 55#ifndef _POSIX_THREAD_SAFE_FUNCTIONS 56#undef gmtime_r 57struct tm *gmtime_r(const time_t *timep, struct tm *result); 58#undef localtime_r 59struct tm *localtime_r(const time_t *timep, struct tm *result); 60#endif /* _POSIX_THREAD_SAFE_FUNCTIONS */ 61 62static inline void os_setup_signal_handling(void) {} 63static inline void os_daemonize(void) {} 64static inline void os_setup_post(void) {} 65void os_set_line_buffering(void); 66static inline void os_set_proc_name(const char *dummy) {} 67 68int getpagesize(void); 69 70#if !defined(EPROTONOSUPPORT) 71# define EPROTONOSUPPORT EINVAL 72#endif 73 74typedef struct { 75 long tv_sec; 76 long tv_usec; 77} qemu_timeval; 78int qemu_gettimeofday(qemu_timeval *tp); 79 80static inline bool is_daemonized(void) 81{ 82 return false; 83} 84 85static inline int os_mlock(void) 86{ 87 return -ENOSYS; 88} 89 90#define fsync _commit 91 92#if !defined(lseek) 93# define lseek _lseeki64 94#endif 95 96int qemu_ftruncate64(int, int64_t); 97 98#if !defined(ftruncate) 99# define ftruncate qemu_ftruncate64 100#endif 101 102static inline char *realpath(const char *path, char *resolved_path) 103{ 104 _fullpath(resolved_path, path, _MAX_PATH); 105 return resolved_path; 106} 107 108/* ??? Mingw appears to export _lock_file and _unlock_file as the functions 109 * with which to lock a stdio handle. But something is wrong in the markup, 110 * either in the header or the library, such that we get undefined references 111 * to "_imp___lock_file" etc when linking. Since we seem to have no other 112 * alternative, and the usage within the logging functions isn't critical, 113 * ignore FILE locking. 114 */ 115 116static inline void qemu_flockfile(FILE *f) 117{ 118} 119 120static inline void qemu_funlockfile(FILE *f) 121{ 122} 123 124/* We wrap all the sockets functions so that we can 125 * set errno based on WSAGetLastError() 126 */ 127 128#undef connect 129#define connect qemu_connect_wrap 130int qemu_connect_wrap(int sockfd, const struct sockaddr *addr, 131 socklen_t addrlen); 132 133#undef listen 134#define listen qemu_listen_wrap 135int qemu_listen_wrap(int sockfd, int backlog); 136 137#undef bind 138#define bind qemu_bind_wrap 139int qemu_bind_wrap(int sockfd, const struct sockaddr *addr, 140 socklen_t addrlen); 141 142#undef socket 143#define socket qemu_socket_wrap 144int qemu_socket_wrap(int domain, int type, int protocol); 145 146#undef accept 147#define accept qemu_accept_wrap 148int qemu_accept_wrap(int sockfd, struct sockaddr *addr, 149 socklen_t *addrlen); 150 151#undef shutdown 152#define shutdown qemu_shutdown_wrap 153int qemu_shutdown_wrap(int sockfd, int how); 154 155#undef ioctlsocket 156#define ioctlsocket qemu_ioctlsocket_wrap 157int qemu_ioctlsocket_wrap(int fd, int req, void *val); 158 159#undef closesocket 160#define closesocket qemu_closesocket_wrap 161int qemu_closesocket_wrap(int fd); 162 163#undef getsockopt 164#define getsockopt qemu_getsockopt_wrap 165int qemu_getsockopt_wrap(int sockfd, int level, int optname, 166 void *optval, socklen_t *optlen); 167 168#undef setsockopt 169#define setsockopt qemu_setsockopt_wrap 170int qemu_setsockopt_wrap(int sockfd, int level, int optname, 171 const void *optval, socklen_t optlen); 172 173#undef getpeername 174#define getpeername qemu_getpeername_wrap 175int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr, 176 socklen_t *addrlen); 177 178#undef getsockname 179#define getsockname qemu_getsockname_wrap 180int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr, 181 socklen_t *addrlen); 182 183#undef send 184#define send qemu_send_wrap 185ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags); 186 187#undef sendto 188#define sendto qemu_sendto_wrap 189ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags, 190 const struct sockaddr *addr, socklen_t addrlen); 191 192#undef recv 193#define recv qemu_recv_wrap 194ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags); 195 196#undef recvfrom 197#define recvfrom qemu_recvfrom_wrap 198ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags, 199 struct sockaddr *addr, socklen_t *addrlen); 200 201#ifdef __cplusplus 202} 203#endif 204 205#endif